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World War I (Zimmerman Telegram (A secret, encoded message sent by Germany…
World War I
Zimmerman Telegram
A secret, encoded message sent by Germany to Mexico, promising an alliance if the U.S. entered WWI.
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Fourteen Points
The peace plan to end WWI and restructure the countries of Europe, proposed by President Wilson.
League of Nations
An association of nations to preserve peace and resolve intenational disputes proposed in Wilson's fourteen points.
Imperialism
The actions used by one country to exercise political, economic, or military control over smaller or weaker countries.
U-boats
Nickname for submarines, from the German word unterseeboot.
Lusitania
A British passenger liner that was torpedoed by a German U-boat on May 7, 1915; 1198 died including 128 Americans.
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Central Powers
Germany, Austria-Hungary, Ottoman Empire and Bulgaria.
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Allied Powers
Great Britain, France, Russia, Serbia, Belgium and the U.S. in 1917.
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Treaty of Versailles
A document signed between Germany and the Allied Powers following World War I that officially ended that war, in 1919
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Convoy
A group of ships or vehicles traveling together, typically accompanied by armed troops, warships, or other vehicles for protection.
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John Pershing
A senior United States Army officer, in World War I
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Battle of Ypres
A battle of WWI where the Germans introduced mustard gas which interfered with the Allied artillery.
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Hundred Days Offensive
The final period of WWI, during which the Allies launched a series of offensives against the Central Powers.
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Biplanes
An early type of aircraft with two pairs of wings, one above the other.
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Battle of Tannenburg
The battle resulted in the almost complete destruction of the Russian Second Army and the suicide of its commanding general, Alexander Samsonov.
Battle of Somme
One of the bloodiest of World War One. For five months the British and French armies fought the Germans in a brutal battle.
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